Island



(No Model.) Z Shets-Sheet 1.

GLB. OOTTRELL. DELIVERY APPARATUS FOR PRINTING MACHINES.

No. 487,386. Patented Dec. 6, 1892.

(No Model.) 2 Sheets-Sh'eet 2.

C.B.GOTTRELL, DELIVERY APPARATUS FOR PRINTING MACHINES.

No. 487,386. Patented Dec. 6, 1892.

Uivrrnfo STATES rricn.

ATENT CALVERT B. COTTRELL, OF VVESTERLY, RHODE ISLAND.

SPECIFICATION forming part Of Letters Patent N0. 487,386, dated December6, 1892.

Application filed October 2'7, 1891- Serial No. 409,970. (No model.)

-for Printing Machines, of which the following:

is a specification.

This invention relates to delivery apparatus comprising an endlessdelivery-carrier havlng grippers thereon for taking the printed sheets;and it especially relates to such delivery apparatus when applied torotary print-j ing-Inachines, in which the paper to be printed issupplied to impression-cylinders from a roll or continuous .web andafter having beenj printed is out into sheets.

The improvement consists, essentially, in

the combinations hereinafter described and claimed, with the endlessdelivery-carrier, of' means for taking the sheets from the grippers ofsaid carrier and depositing them positively in a certain position on areceiving-table or other receptacle.

I will now describe my invention with reference to the drawings andafterward point.

out its novelty in claims.

Figure 1 represents a side elevation of the principal parts of aperfecting-machine embodying my invention. Fig. 2 isa plan view of thesame. Fig. 3 is a vertical sectional view on a larger scale than Figs. 1and 2, taken in the line :1; as of Fig. 2, representingthe deliveryapparatus and a cutting apparatus by which the printed web is cut intosheets preparatory to being taken by the delivery appa Fig. t representsa transverse section corresponding with Fig. 3, taken in the line ratus.

y y of the latter figure and viewed from the Similar letters andnumerals of reference designate corresponding parts in all the figures.

A is the main framing of the machine, con .taining the bearings for thecylinders B, C, D, and E, of which B is the first impression-cyL inder,C the first form-cylinder, D the second impression-cylinder, and E thesecond form-; cylinder, and all of which are geared together by gears 11c d e to rotate in the direction of Figs 5 and 6 are detailed viewswhich ,will be hereinafter referred to as parts of the deliveryapparatus. nished with cutter-blades Z l.

the arrows which are shown near them. in Fig. 1, the whole derivingmotion from the main shaft S of the machine through a gear S on the mainshaft, gearing with a spur-gear d, as shown in Figs. 1 and 2.

F is the web of paper, supplied from a suitable roll (not shown) andpassing down between the cylindersDland E and under the cylinder D tothe delivery apparatus, which I will now proceed to describe.

On each side of the machine, supported at a a on the main framing A, aretwo side frames A i i, consisting each of two heads A, connected byparallel horizontal bars it", which constitute ways forthe endlesscarrier, which is represented as consisting of two endless toothed racksor chains G, with attached grippersj and it). The heads A of the saidframes have secured in them studs 9 g'--0ne in each head A'forthesupport of the wheels h h, which carry the said endless racks. The saidendless racks are driven from the spurgear S on the main shaft S throughgearing which will be presently described, so that their lower parts,which are nearly on the level with the bottom of the impression-cylinderD, running on the ways 2', travel in a direction away from the saidcylinder. The grippers j and 7c, carried by the endless toothed racks,are presented transversely to the length of the racks for the purpose oftaking hold of the said edges of the printed web after the latter haspassed the cylinder D.

The endless carrier above described is in all essential particulars likethat shown and described in my patent, No. 442,862, dated December 16,1890, except that it is the lower horizontal run that is operativeinstead of the upper one, as in that patent.

H H represent two rotary cutterheads fur- These heads are mounted onshafts I I,supported in bearings A A erected upon the side frames A somedistance in front of the carrying-wheels h. The height at which theseshafts are re spectively supported in theirbearingsis such that theedges of the two cutter-blades will meet in their rotation about on alevel with the web of paper which is being carried away from thecylinder D by the grippers j and k and will cut the web into sheets. Itwill be observed that the upper cutter-shaft I passes through theendless carrier and its cutters work Within the said carrier and thelower cutter-shaft I is below the endless carrier. The uppercutter-shaft I is furnished with a spur-gear 1 which is geared with andderives motion from the gear (1 on the shaft of the cylinder D throughan intermediate gear S which runs on a fixed stud S secured on the mainframing A, and the said gear I communicates motion to the lowercuttershaft 1 through a spur-gear H on the latter shaft, so that bothcutter-shafts and their heads rotate at the same velocity, which is suchthata pair of cutter-blades one on each cutter-headwill come intooperation upon the web carried by the grippers jand 7c of the endlesscarrier at intervals corresponding with the length of the sheets to becut. The lower cutter-shaft I carries two spur-gears 1 which gear withand drive the endless racks G at the same velocity as that of thesurfaces of the several cylinders. The grippers of the seriesj, which 1term the front grippers, are set on their respective chains at adistance apart in a direction lengthwise of the racks equal to thelength of the sheets to be cut, and those of the series 70, which I termthe rear grippers, are similarly arranged with respect to each other.Two opposite front grippersj and two opposite rear grippers 7cconstitute a set for taking a sheet, the rear grippers being set at adistance behind the front ones somewhat less than the length of thesheet to be cut, so that the four grippers of a set hold the cut sheetsnear their four corners. The opening of these grippers j and it to takethe web as it passes between the cylinderD and the cutters is effectedby two stationary cams 9 which are firmly secured one to each of thefixed studs g, on which the carrying-wheels it turn. The opening of thefront grippersjto let go the forward ends of the sheets is effected bymeans of two stationary cams 9 secured to the fixed studs g, on whichthe carrying-wheels it work. The opening of the rear grippers 7a to letgo the rear ends of the sheets is effected by means of stationary camsg, which are secured to thelower ways 2" and project inward over theinner edges thereof, the several opening operations being producedby'the grippers passingin contact with the said stationary cams as theyare carried along by the endless racks. Each pair of grippers isprovided with a closing-spring 'm,

bywhich its jaws are kept closed.

The grippers and 70, as shown in Fig. 4,

.are substantially like those illustrated and will be understood byreference to Figs. 3 and 4, are shorter than the heels 8 9 of themovable members of the rear grippers 7c in order that the front grippersmay be opened by the cams g 9 but will pass the cams g without opening,and that the rear grippers It may be opened by the cams g and g as theypass by them. It will be seen on reference to Fig. 3 that the cams g areso much farther from the line of travel of the grippers than the cams 9that their short heels 8, though within range of the cams g 9 will notreach the earns 9 but the elongated portions 9 of the heels of the reargrippers will reach the said cams 9 while the portions 8 of the saidheels are in range with the camsg The faces of the cams g are, as may beunderstood by reference to Fig. 3, deep enough to take in both the heels8 of the front grippers jand those 9 of the rear grippers k, so thatboth series of grippers may be opened in passing the said cams 9 It isintended that the printed sheets delivered by the grippers of theendless chains should be deposited upon any suitable receptacle. In theexample represented this receptacle is simply a receiving-table T, atthe rear end of which is a stationary upright gageboard T. The saidtable is supported on geared levers T Fig. 3, and is provided with theordinary means of adjusting its height from time to time, so that thelast sheet deposited upon it will always be at about the same level ordistance below the endless carrier; but of whatever. kind thisreceptacle may be it is desirable that the said sheets shall bedeposited positively upon it always in thesame horizontal position,whichcould not beeffeeted by simply allowing them to drop upon it from theopen grippers. I will now proceed to describe the means for thispositive deposit of the sheets, which constitute the most essential partof my invention, and consist of a set of grippers 0 0, which are bestshown in Figs. 3, 4, and 6, but also shown in Figs. 1 and 2. The saidgrippers 0 0', which may be termed the depositing-grippers and whichhave their points presented in a forward direction and are intended totake hold of the rear or tail ends of the sheets, are carried by alongitudinal rock-shaft J, situated at a suitable distance below theendless carrier behind the gage-bard T of the receiving-table and infront of the lower cutter-shaft I, the said rock-shaft being arrangedtransversely to the machine in suitable fixed bearings in the sideframeA thereof. On this rook-shaft are secured two forwardlyprojectingarms J, in the ends of which are bearings for a second rock-shaft J onwhich are firmly secured two upwardly-projecting arms J in the upperparts of which are supported the two gripper-bars an, which carry theseveral grippers 0 0. The lower memthe said arms.

IIO

to it in a well-known manner a spring p, (see Fig. 4,) which alwaysexerts a tendency to close the grippers.

The depositinggrippers 0 0' have besides their opening and closingmovement both an upward-anddownward movement andabackward-and -forwardmovement between the racks G and grippers of the endless carrier, thebackward-and-forward movement being due to the rocking of the shaft J inthe arms J of the shaft J and their upward-and-downward movement beingdue to the rocking of the shaft J in its stationary bearings. Thesemovements are produced by two cams K L on a short shaft M, which worksin a hearing M on one of the side frames and which is furnished with aspur-gear M through which it derives motion from a spur-gear J on thelower cutter-shaft 1. The cam K produces the oscillation of therock-shaft J and the upward-and-downward movement of the rock-shaft Jand its arms J and grippers 0 0 by means of a yoke-rod g, which connectssaid cam with one of the arms J. The cam L produces the backward andforward swinging movement of the said arms J and grippers 0 o by meansof a yoke-rod '1", which connects the said cam with an arm r on therock-shaft J the said arm r being represented in Fig. 3 as made in thesame piece with one of the arms J It may be understood by reference toFigs. 3, 5, and 6 that the rock-shaft J 2 and its arms J 3 and rconstitute one lever for producing a backward-and-forward movement ofthe depositing-grippers 0 0 between the cutters and the delivery-boardand that the rock-shaft J and its arms J constitute another lever bywhich an upward-and-downward movement of the said grippers 0 o isproduced. To effect the opening and closing of the depositing-grippers 00 at the proper time to take the sheet from the carrier-grippers anddeposit it on the table T, the bar n of the upper members 0 is furnishedwith an arm n carrying a small antifriction-roller, which is broughtduring the above-described movements of the said grippers with the armsJ 3 into contact successively with two stationary cams s 8, (see Figs.3, 4E, and 6,) secured to the inside of the side framing of themachine,the -cam 8 serving for the opening of the grippers to take thesheets and .5" serving to open the grippers for depositing the sheets onthe table T. This arm n and these cams s s are representedin Fig. 4 asduplicated on the two sides of the machine.

The above-described movements of the arms J and the depositing-grippers0 o are so timed that the said grippers rise with their points justbehind the cuts which have been made in the web to divide the sheets,and the said grippers, having then been opened by the cam s,sufficiently lift the head of each sheet as it comes along to allow themto take hold of the tail end of the sheet next in front which is readyto be delivered, the said grippers then moving forward faster than theweb and sheets to receive within them the said tail end before the sideedges of said sheet are released by the grippers of the endless carrier.The speed of the said forward movement of the depositing-grippers isthen reduced to that of the endless carrier and the sheet and the saidgrippers close. The carrier-grippers then release the sheet and thedepositing-grippers take its tail end over the gage-board T and thendownward toward the top of the pile on the receiving-table T, then moveslightly backward toward the gageboard T, against which they bring thesheet just at the moment when they are again opened by the cam s. Thetail end of the sheet is thus deposited positively in a determinedposition on the table and the forward .end or head of the sheetnaturally drops into a corresponding position.

The movement which is given to the depositing-grippers by the cams K Lis illustrated in Fig. 6 by the line 10, which indicates the path of thepoint of the lower gripper n. Fig. 3 shows the position of the gripperswhen they have just closed upon the tail end of the sheet in the endlesscarrier, and Fig. 5 shows the position of the cam K and the relation ofthe depositinggrippcrs to the cams s s, corresponding with Fig. 5. Fig.6 shows the position of the arms J and J and the depositing-grippers andthe relation of the latter to the cams s s at the time of depositing thesheet on the pile. It will be understood that throughout this movementof the depositinggrippers the points of the said grippers are alwayspresented in the forward direction in which they take and deposit thesheets.

In order to prevent the backward movement of the depositing-grippersfrom being interfered with by the upper edge of the gageboard T, whichmust necessarily project above the top of the pile of sheets on thetable T, the said board has notches or openings tent in its upper edge,as shown in Figs. 3 and 4C, for the said grippers to pass through, andin order to retain the sheets in place after they have been deposited onthe receivingtable there are two or more upright pins 15 inserted in thesaid table at said points.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination,in a printing-machine, of an endless carrier havinggrippers at its sides for taking hold of the sides of a web, a cutterfor cutting the web into sheets in said carrier,a receptacle for the cutsheets, depositing-grippers and levers for carrying the same with theirpoints in a forward direction, rotary cams for operating said levers togive the said depositing-grippersabackward-andforward motion and anupward-and-downward motion, the said levers and earns being arranged infront of the cutters and behind said receptacle, stationary cams foropening the grippers of the carrier, and stationary cams for openingsaid depositing-grippers, substantially as herein described.

2. The mechanism for operating the depositing-grippers 0 0, consistingof the combination of the swinging arms J carrying said grippers, therock-shaft J carrying said arms J the rock-shaft J, having fixedbearings and having arms J for carrying the rockshaft J the rotary camsK L and their conto nections with said arms J and rook-shaft J foroperating the said arms J and the stationary cams s s for opening saidgrippers,

all substantially as herein setforth.

OALVERT B. OOTTRELL. Witnesses:

CHAS. P. C TTRELL, A. R. STILLMAN.

